Some cookies are essential to ensure our website works for you. You may block or delete all cookies from this site but parts of the site may not work. To find out more about how we use cookies, see our privacy statement.

Are you in the United States?

Support

Product FAQs

Troubleshooting

Why is my USB-C device defaulting to USB 2.0 speeds?

Some USB-C controller cards do not support the reversibility of the USB-C connector, which means that some cable and host controller combinations only receive USB 3.1 speeds in one orientation. To determine if this is the cause of your issue, unplug your USB-C cable and flip the cable upside down and plug it back into the USB controller card.

Although USB-C supports transfer speeds up to 10 Gbps, all of the devices in your setup must support USB 3.1 Gen 2 (10 Gbps) in order to transfer data at that speed. The maximum data transfer speed you will experience is the fastest transfer speed that the slowest device in your setup supports.